Compatible widescreen television system

Details Compatible widescreen television system Compatible widescreen television system

1989-11-06

1991-12-03

Groody, James J.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 11, H04N 1106

Patent

active

050703960

ABSTRACT:
In a widescreen signal encoding system for a television-type signal, side panel chrominance information is conveyed in double sideband form on an auxiliary subcarrier having a field inverting phase relative to the phase of a standard chrominance subcarrier. Side panel high frequency luminance information exclusive of low frequency information also is conveyed on the auxiliary subcarrier, but in single sideband form. Illustratively the auxiliary subcarrier is at the 3.58 MHz frequency of the standard chrominance subcarrier.

REFERENCES:
patent: 4839720 (1989-06-01), Isnardi
Isnardi et al., "Encoding for Compatibility and Recoverability in the ACTV System", IEEE Transactins on Broadcasting, vol. BD-33, No. 4, Dec. 1987.

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